riscv/rocket-chip
1
0
Fork 0
Code Releases Activity

subsystem: add TLIdentity.gen and make wrappers more flexible

Browse Source
This commit is contained in:
Henry Cook 2018-02-21 18:22:06 -08:00
parent eaa908d44f
commit 78883d13e8
5 changed files with 54 additions and 28 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
src/main/scala/subsystem/MemoryBus.scala
View File

@ -56,17 +56,12 @@ class MemoryBus(params: MemoryBusParams)(implicit p: Parameters) extends TLBusWr
}
}
def toDRAMController(
def toDRAMController[D,U,E,B <: Data](
name: Option[String] = None,
buffer: BufferParams = BufferParams.none)
(gen: => TLInwardNode) {
to("memory_controller" named name) { gen := bufferTo(buffer) }
}
def toDRAMControllerPort[D,U,E,B <: Data](
name: Option[String] = None,
buffer: BufferParams = BufferParams.none)
(gen: => NodeHandle[TLClientPortParameters,TLManagerPortParameters,TLEdgeIn,TLBundle,D,U,E,B]): OutwardNodeHandle[D,U,E,B] = {
(gen: => NodeHandle[
TLClientPortParameters,TLManagerPortParameters,TLEdgeIn,TLBundle,
D,U,E,B] = TLIdentity.gen): OutwardNodeHandle[D,U,E,B] = {
to("memory_controller" named name) { gen := bufferTo(buffer) }
}

32
src/main/scala/subsystem/PeripheryBus.scala
View File

@ -33,34 +33,42 @@ class PeripheryBus(params: PeripheryBusParams, val crossing: SubsystemClockCross
private def fixedWidthTo(buffer: BufferParams): TLOutwardNode =
TLWidthWidget(params.beatBytes) :*= bufferTo(buffer)
def toSlave(
def toSlave[D,U,E,B <: Data](
name: Option[String] = None,
buffer: BufferParams = BufferParams.none)
(gen: => TLNode): TLOutwardNode = {
(gen: => NodeHandle[
TLClientPortParameters,TLManagerPortParameters,TLEdgeIn,TLBundle,
D,U,E,B] = TLIdentity.gen): OutwardNodeHandle[D,U,E,B] = {
to("slave" named name) { gen :*= bufferTo(buffer) }
}
def toVariableWidthSlave(
def toVariableWidthSlave[D,U,E,B <: Data](
name: Option[String] = None,
buffer: BufferParams = BufferParams.none)
(gen: => TLNode): TLOutwardNode = {
(gen: => NodeHandle[
TLClientPortParameters,TLManagerPortParameters,TLEdgeIn,TLBundle,
D,U,E,B] = TLIdentity.gen): OutwardNodeHandle[D,U,E,B] = {
to("slave" named name) {
gen :*= fragmentTo(params.beatBytes, params.blockBytes, buffer)
}
}
def toFixedWidthSlave(
def toFixedWidthSlave[D,U,E,B <: Data](
name: Option[String] = None,
buffer: BufferParams = BufferParams.none)
(gen: => TLNode): TLOutwardNode = {
(gen: => NodeHandle[
TLClientPortParameters,TLManagerPortParameters,TLEdgeIn,TLBundle,
D,U,E,B] = TLIdentity.gen): OutwardNodeHandle[D,U,E,B] = {
to("slave" named name) { gen :*= fixedWidthTo(buffer) }
}
def toFixedWidthSingleBeatSlave(
def toFixedWidthSingleBeatSlave[D,U,E,B <: Data](
widthBytes: Int,
name: Option[String] = None,
buffer: BufferParams = BufferParams.none)
(gen: => TLNode): TLOutwardNode = {
(gen: => NodeHandle[
TLClientPortParameters,TLManagerPortParameters,TLEdgeIn,TLBundle,
D,U,E,B] = TLIdentity.gen): OutwardNodeHandle[D,U,E,B] = {
to("slave" named name) {
gen :*= TLFragmenter(widthBytes, params.blockBytes) :*= fixedWidthTo(buffer)
}
@ -76,6 +84,14 @@ class PeripheryBus(params: PeripheryBusParams, val crossing: SubsystemClockCross
}
}
def toFixedWidthPort[D,U,E,B <: Data](
name: Option[String] = None,
buffer: BufferParams = BufferParams.none)
(gen: => NodeHandle[TLClientPortParameters,TLManagerPortParameters,TLEdgeIn,TLBundle,D,U,E,B]): OutwardNodeHandle[D,U,E,B] = {
to("port" named name) { gen := fixedWidthTo(buffer) }
}
def fromSystemBus(
arithmetic: Boolean = true,
buffer: BufferParams = BufferParams.default)

2
src/main/scala/subsystem/Ports.scala
View File

@ -52,7 +52,7 @@ trait HasMasterAXI4MemPort { this: BaseSubsystem =>
})
memBuses.map { m =>
mem_axi4 := m.toDRAMControllerPort(Some(portName)) {
mem_axi4 := m.toDRAMController(Some(portName)) {
(AXI4UserYanker() := AXI4IdIndexer(params.idBits) := TLToAXI4())
}
}

28
src/main/scala/subsystem/SystemBus.scala
View File

@ -47,7 +47,7 @@ class SystemBus(params: SystemBusParams)(implicit p: Parameters) extends TLBusWr
def toSplitSlave(name: Option[String] = None)
(gen: => TLNode): TLOutwardNode = {
to("slave" named name) { gen :*= master_splitter.node }
to("slave" named name) { gen :=* master_splitter.node }
}
def toFixedWidthSlave(
@ -66,12 +66,8 @@ class SystemBus(params: SystemBusParams)(implicit p: Parameters) extends TLBusWr
}
}
def fromCoherentChip(gen: => TLNode): TLInwardNode = {
from("CoherentChip") { inwardNode :=* gen }
}
def fromFrontBus(gen: => TLNode): TLInwardNode = {
from("FrontBus") { master_splitter.node :=* gen }
from("front_bus") { master_splitter.node :=* gen }
}
def fromTile(
@ -104,15 +100,27 @@ class SystemBus(params: SystemBusParams)(implicit p: Parameters) extends TLBusWr
}
}
def fromCoherentMaster(
name: Option[String] = None,
buffers: Int = 0)
(gen: => TLNode): TLInwardNode = {
from("coherent_master" named name) {
(inwardNode
:=* TLFIFOFixer(TLFIFOFixer.all)
:=* TLBuffer.chain(buffers).reduce(_ :=* _)
:=* gen)
}
}
def fromMaster(
name: Option[String] = None,
buffers: Int = 0)
(gen: => TLNode): TLInwardNode = {
from("master" named name) {
(List(
master_splitter.node,
TLFIFOFixer(TLFIFOFixer.all)) ++
TLBuffer.chain(buffers)).reduce(_ :=* _) :=* gen
(master_splitter.node
:=* TLFIFOFixer(TLFIFOFixer.all)
:=* TLBuffer.chain(buffers).reduce(_ :=* _)
:=* gen)
}
}
}

7
src/main/scala/tilelink/BusWrapper.scala
View File

@ -54,3 +54,10 @@ trait HasTLXbarPhy { this: TLBusWrapper =>
protected def inwardNode: TLInwardNode = xbar.node
protected def outwardNode: TLOutwardNode = xbar.node
}
object TLIdentity {
def gen: TLNode = {
val passthru = TLIdentityNode()
passthru
}
}